US3305971A

US3305971A - Lock for awning-type windows

Info

Publication number: US3305971A
Application number: US506251A
Authority: US
Inventors: Golen Selig
Original assignee: Yale Ogron Manufacturing Co Inc
Current assignee: Yale Ogron Manufacturing Co Inc
Priority date: 1965-11-03
Filing date: 1965-11-03
Publication date: 1967-02-28
Anticipated expiration: 1984-02-28

Description

Feb. 28, 1967 s. GOLVEN 3,305,971

LOCK FOR AWNING-TYPE WINDOWS 2 Sheets-Sheet 1 Filed Nov. 5, 1965 Fig. 5

38 7 Selig Go/en 62 I I w INVIENTOK.

5 I J: BY 3 26 Feb. 28, 1967 s. GOLEN 3,305,971

LOOK FOR AWNING-TYPE WINDOWS Filed Nov. 5, 1965 2 Sheets-Sheet 2 Fig.4

Fig.3

.Se/ig Galen 1N VIENTOK United States Patent Ofilice 3,305,971 Patented Feb. 28, 19 67 LOCK FOR AWNING-TYPE WINDOWS Selig Golen, Miami, Fla., assignor to Yale Ogron Mfg. Co., Inc., a corporation of Florida Filed Nov. 3, 1965, Ser. No. 506,251 Claims. (CI. 49-81) The present invention generally relates to improvements in awning-type windows and more specifically to a lock device for locking the vent panels of an awningtype window when in a closed position. The lock device set forth in the present application is basically the same as that disclosed in any prior co-pending application U.S. Ser. No. 36,526, filed June 16, 1960 and now abandoned, with respect to which the present application is a continuation-in-part.

It is a well known problem that awning-type windows are not too secure when the the vents are in their closed position inasmuch as the vents may be forced open by a small amount without the use of the window actuating mechanism associated therewith. Thus, it is the primary object of the present invention to positively and definitely lock each vent in the closed position and thereby prevent any of the vents from being forced outwardly.

Another object of the present invention is to provide a locking device for the vents of awning-type windows in which each side of each awning-type window .vent is provided with a locking mechanism and all of the looking mechanisms are automatically operated independent of each other.

The present invention forms a highly effective lock since each vent is locked individually and controlled individually. The vents are absolutely devoid of interconnection as far as the locking mechanism is concerned and the locking mechanism is operated by movement of the slide bar in relation to the frame.

In accordance with the foregoing objects, each window vent is provided with a locking plate pivotally mounted by the main frame about the same axis as the mounting link connecting the vent to the frame. A cam and slot arrangement on the locking plate cooperates with an actuating pin on the slide bars through which the vents are displaced between open and closed positions in order to sequentially displace the locking plate out of the path of movement of a lockpin projecting from the event as the vent approaches a closed position, the lock plate then being displaced toward a lock position just before the vent reaches the closed position so that the lock platemay engage the lockpin. Thus, when the vent assumes a completely closed position, the lock plate will be in a locking position to positively prevent any opening of the vent unless effected through the operating slide bars.

A still further feature of the present invention is to provide a locking plate having a stop projection so as to limit its upward displacement to a release position.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

FIGURE 1 is a perspective view of an awning-type window with the locking device of the present invention incorporated therein;

FIGURE 2 is a partial transverse sectional view taken substantially through a plane indicated by section line 2-2 in FIGURE 1;

FIGURE 3 is a partial sectional view taken substantially through a plane indicated by section line 33 in FIGURE 2 illustrating the window assembly in an open position;

FIGURE 4 is a partial sectional view similar to FIG- URE 3 but showing the vent frame moving toward th closed position;

FIGURE 5 is a partial sectional view similar to FIG- URE 4 but showing the vent frame as it approaches the closed position;

FIGURE 6 is a partial sectional view similar to that of FIGURE 5 but showing the vent frame in a completely closed position;

FIGURE 7 is an enlarged side sectional view showing the lock plate in the lock position thereof;

FIGURE 8 is a partial sectional view showing the locking plate in its limit position.

Referring now specifically to the drawings, the numeral 10 generally designates an awning-type window which includes a plurality of panels or vents 12 carried by a hollow frame structure 14 for movement from a closed position to an open outwardly inclined position. The frame 14 is provided with hollow side rails 18 housing a vent operating assembly which is actuated by the actuating handle 20 of a conventional actuating mechanism disposed interiorly of the frame 14 as shown in FIGURES 1 and 3. The operating assembly includes a vertically reciprocable rigid slide bar 22. The slide bar is connected to a plurality of hinge arms 24 which are secured to and project upwardly from the side edges of the vents 12. Pivotally supporting the vents 12 in the frame 14, are links 26, each link being pivotally connected to the vent 12 by a pivot pin 28 and pivotally connected to the frame by stationary pivot pin 30. A connecting link 32 interconnects the crank element associated with the actuating mechanism with the slide bar 22 so that turning of the operating handle 20 will impart vertical movement to the slide bar. Since the same rigid slide bar 22 is connected to the vent, vertical movement is instantaneously transmitted through the connecting pin 34 to the vent 12 so that the vent may be displaced from the closed position illustrated in FIGURE 6 to a fully opened position as illustrated in FIGURE 3 undergoing both vertical and pivotal movement. The foregoing arrangement however ordinarily permits a limited degree of movement of the vent from its closed position by use of some instrument such as a screwdriver applied under the bottom edge of the vent for displacement thereof outwardly.

In order to prevent such movement of the vents after they have been moved to a closed position, a lock mechanism is provided and is generally designated by numeral 36. The lock mechanism as shown in FIGURE 7 includes a lock plate 38 having an aperture' 40 by which it-is pivoted about axis common with the pivotal axis for the link 26 on the pin 30 whereby the lock plate may swing freely about the pin axis. The top edge 42 of the lock plate is straight and the forward or outward edge 44 is perpendicular thereto. Disposed inwardly of the outward edge 44 is a vertically extending notch '46 having a longitudinal axis 47 as shown in FIGURE 7 substantially parallel to the edge 44. The outward side of the notch 46 flares outwardly at the lower end 48 while the inward side of the notch is inclined inwardly at 50 thereby providing somewhat of an entrance throat for the notch 46.

Facing inwardly and communicating with the rear edge of the plate 36 is a notch or actuating cam slot 52 disposed in perpendicular relation to the notch 46. The area of the plate 38 between the notch 46 and the slot 52 is generally in the shape of a hook formed by cam surface 54 which extends from the lower edge of the slot 52. The lower edge of the slot 52 is somewhat shorter than the upper edge which intersects the rear edge 56 58 that extends from the edge 56 toward the top edge 42.

A stop projection 59 interconnects the

edges

58 and 42 for purposes to be hereafter explained.

The slot 52 and the cam surface 54 constitute cam means engagea-ble by an actuating pin 60 carried on the slide bar 22 while the notch 46 is engageable with a lockpin 62 carried on the vent 12. The lockpin 62 is located on the vent closer to the upper end thereof than the lower end so that it may be engaged by the notch 46 before the lower end of the vent reaches its closed position. The lock plate 38 together with the

pins

60 and 62 will be repeated on each side of each vent 12 thereby enabling the Vents to be closed in any sequence with each lock mechanism being individually operated and dependent only upon the structure of the slide bar and the vent for ope-ration.

With the awning-type window in an open position as illustrated in FIGURE 3, the slide bar is moved upwardly in order to close the vent 12. As the slide bar 22, link 26 and vent 12 move toward a closed position and reach the position illustrated in FIGURE 4, the actuating pin 60 engages the cam surface 54 and pivotally displaces the lock plate 38 upwardly. This will continue until the actuating pin enters the slot 52 corresponding to a pin receiving or release position for the locking plate. In this release position, the stop projection 59 abuts the side rail 18 so as to prevent any further upward displacement of the lock plate. Thus, the lock plate will be displaced to the release position out of the path of movement of the lock pin 62 so that as the vent approaches the closed position, the lockpin will become aligned with the notch 46 at its entrance throat. Continued upward displacement of the slide bar 22 with the actuating pin 60 within the slot 52, causes the lock plate 38 to pivot downwardly so that the notch 46 guidingly receives the lock pin 62 between the sides thereof as shown in FIGURE 5. As the slide bar 22 completes its upward travel in order to fully seat the lockpin 62 within the notch 46, final movement of the vent to its closed position is assisted by the pivotal displacement of the lock plate itself acting through the notch 46 and lockpin 62. When the vent 12 assumes its fully closed position as shown in FIGURE 6, the lock plate 38 will be in its lock position fully seating the lockpin 62 within the notch 46. In such lock position, the longitudinal axis 47 of the notch 46 will be slightly inclined inwardly relative to the main frame or slide bar 22 as more clearly seen in FIGURE 7.

In the position of FIGURE 6, the vents 12 are socurely locked in their closed position at each side edge thereof and each vent is individually locked with the locking mechanism of one vent not being dependent upon or otherwise associated with the locking mechanism of the other vent. When the vents are moved toward the open position from the closed positon as illustrated in FIGURE 6, the slide bar is moved downwardly. When this occurs, the actuating pin 60 will engage the bottom edge of the slot 52 thus upwardly camming the plate 38 in order to accommodate movement of the lockpin 62 by the vent out of the notch 46. After the lock plate is disengaged from the lockpin in this fashion, the actuating pin moves downwardly with the slide bar 22 to a position below the lock plate permitting the lock plate to return to a normal position with the top edge 42 substantially horizontal and the forward edge 44 substantially vertical as shown in FIGURE 3.

The actuating pin 60 during its upward movement with the slide bar not only cams the lock plate upwardly to the release position but will also serve to subsequently urge the lock plate 38 downwardly when it engages the upper edge of the slot 52 since the actuating pin is slightly spaced from the axis of the pivot pin 30 thereby assuring locking movement of the lock plate 38. The stop projection 59 serves to limit upward or counterclockwise displacement of the lock plate as shown in FIGURE 8 in order to avoid counterclockwise overtravel beyond the release position to insure that the actuatingpin will remain in alignment with the slot 52. The actuating pin will thereby reliably force the locking plate to its locking position shown in FIGURES 6 and 7 wherein the locking notch 46 is orientated at its inward inclination aforementioned. This inward inclination of the notch 46 will positively prevent outwardly displacement of the vent since any outward force applied to the locking plate through the locking pin would tend to downwardly cam the lock plate. Further, the vertical elongation of the notch 46 and its outward spacing from the pivot pin 30 will require vertical travel of the lockpin 62 by a substantial amount before the locking plate is disengaged from the lockpin. Thus, the orientation of the locking notch 46 and its configuration are essential for reliable and positive locking of a vent within a window construction of the described type wherein a rigid slide bar is pivotally connected to the vent in spaced relation to its pivotal support by the frame mounted link 26. Further, the pivotal mounting of both the link 26 and the lock plate 38 on the same pivot pin 30 facilitates construction, assembly and operation of the lock mechanism.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. In a multi-vent window construction having a main frame, a plurality of vent frames mounted for movement inwardly and outwardly of the main frame, vertically movable slide bars mounted on the main frame, operating arms pivotally connecting the slide bars to the vent frames adjacent upper ends of the vent frames, pivot pins fixedly mounted on the main frame, supporting links mounted on the pivot pins and pivotally connected to the vent frames adjacent the upper ends, an operating mechanism mounted on the main frame and connected to the slide bars for displacing the vent frames between open and closed positions relative to the main frame, and lock means for independently holding each of the vent frames in a closed position, each of the lock means including, a lock plate pivotally mounted on said pivot pin and having -an actuating notch below said pivot pin and an elongated locking notch spaced outwardly of said pivot pin, a cam surface on the lock plate, an acauating pin mounted on the slide bars of engagement with the cam surface prior to entry into said actuating notch to displace the lock plate to a receiving position, a lock pin mounted on the vent frame closer to the upper end thereof than to the lower end for reception in said locking notch of the lock plate as the vent frame approaches the closed position, said locking notch 'being elongated along a longitudinal notch axis and receiving the locking pin when the lock plate is being displaced by the actuating pin from said receiving position toward a locking position, said lock plate when disengaged from the actuating and locking pins assuming a positon in the path of movement of the locking pin with said notch axis substantially parallel to the main frame, the locking notch in the locking position of the lock plate confining the locking pin against lateral movement thereof in opposite directions.

. 2. The combination of claim 1 including a stop projection formed on the lock plate and abutting the main frame when the lock plate is in the receiving position.

3. In combination with a window frame, a rigid operating bar slidably mounted on the frame, a panel pivotally connected to said operating bar, a mounting link pivotally interconnected between said operating bar and the panel and lock means for holding the panel in a closed position in parallel spaced relation to the operating bar comprising, a lock plate having an elongated notch, means pivotally mounting said lock plate and the mounting link on the frame about a common axis, cam means mounted on the lock plate and engageable by said rigid operating bar for displacing the lock plate between a lock position and a release position in response to downward displacement of the operating bar, a lock pin mounted on the panel for movement along a path intersecting the lock plate in the lock position thereof, said elongated notch being formed by downwardly opening sides spaced laterally and outwardly from the common axis for guiding movement of the lock pin therebetween a substantial distance as the panel approaches and departs from the closed position, said sides of the notch extending inwardly toward the operating bar when the lock plate is in the closed position and confining the lock pin against lateral movement, stop means mounted on the lock plate and engageable with the frame for preventing overtravel of the lock plate beyond said release position out of the path of movement of the lock pin.

4. The combination of claim 3 wherein said cam means comprises a horizontally elongated slot formed in the lock plate spaced below said common axis, a cam surface formed on the lock plate below the slot and an actuating pin mounted on the operating bar engaging the cam surface and entering the slot in response to upward displacement of the operating bar to sequentially displace the lock plate to the release position and from the release position to the lock position as the panel approaches the closed position.

5. In combination with a window frame, a rigid operating bar slidably mounted on the frame, a panel pivotally connected to said operating bar, a mounting link pivotally interconnected between said operating bar and the panel and lock means for holding the panel in a closed position in parallel spaced relation to the operating bar comprising, a lock plate having an elongated notch, means pivotally mounting said lock plate and the mounting link on the frame about a common axis, cam means mounted on the lock plate and engageable by said rigid operating bar for displacing the lock plate between a lock position and a release position in response to downward displacement of the operating bar, a lock pin mounted on the panel for movement along a path intersecting the lock plate in the lock position thereof, said elongated notch being formed by downwardly opening sides spaced laterally and outwardly from the common axis for guiding movement of the lock pin therebetween a substantial distance as the panel approaches and departs from the closed position, said sides of the notch extending inwardly toward the operating 'bar when the lock plate is in the closed position and confining the lock pin against lateral movement, said cam means comprising a horizontally elongated slot formed in the lock plate spaced below said common axis, a cam surface formed on the lock plate below the slot and an actuating pin mounted on the operating bar engaging the cam surface and entering the slot in response to upward displacement of the operating bar to sequentially displace the lock plate to the release position and from the release position to the lock position as the panel approaches the closed position.

References Cited by the Examiner UNITED STATES PATENTS 2,766,491 10/1956 Wiley 2042 2,893,728 7/ 1959 Tucker 2042 2,950,510 8/1960 Tucker 2042 HARRISON R. MOSELEY, Primary Examiner.

A. I. BREIER, Assistant Examiner.

Claims

1. IN A MULTI-VENT WINDOW CONSTRUCTION HAVING A MAIN FRAME, A PLURALITY OF VENT FRAMES MOUNTED FOR MOVEMENT INWARDLY AND OUTWARDLY OF THE MAIN FRAME, VERTICALLY MOVABLE SLIDE BARS MOUNTED ON THE MAIN FRAME, OPERATING ARMS PIVOTALLY CONNECTING THE SLIDE BARS TO THE VENT FRAMES ADJACENT UPPER ENDS OF THE VENT FRAMES, PIVOT PINS FIXEDLY MOUNTED ON THE MAIN FRAME, SUPPORTING LINKS MOUNTED ON THE PIVOT PINS AND PIVOTALLY CONNECTED TO THE VENT FRAMES ADJACENT THE UPPER ENDS, AN OPERATING MECHANISM MOUNTED ON THE MAIN FRAME AND CONNECTED TO THE SLIDE BARS FOR DISPLACING THE VENT FRAMES BETWEEN OPEN AND CLOSED POSITIONS RELATIVE TO THE MAIN FRAME, AND LOCK MEANS FOR INDEPENDENTLY HOLDING EACH OF THE VENT FRAMES IN A CLOSED POSITION, EACH OF THE LOCK MEANS INCLUDING, A LOCK PLATE PIVOTALLY MOUNTED ON SAID PIVOT PIN AND HAVING AN ACTUATING NOTCH BELOW SAID PIVOT PIN AND AN ELONGATED LOCKING NOTCH SPACED OUTWARDLY OF SAID PIVOT PIN, A CAM SURFACE ON THE LOCK PLATE, AN ACTUATING PIN MOUNTED ON THE SLIDE BARS OF ENGAGEMENT WITH THE CAM SURFACE PRIOR TO ENTRY INTO SAID ACTUATING NOTCH TO DISPLACE THE LOCK PLATE TO A RECEIVING POSITION, A LOCK PIN MOUNTED ON THE VENT FRAME CLOSER TO THE UPPER END THEREOF THAN TO THE LOWER END FOR RECEPTION IN SAID LOCKING NOTCH OF THE LOCK PLATE AS THE VENT FRAME APPROACHES THE CLOSED POSITION, SAID LOCKING NOTCH BEING ELONGATED ALONG A LONGITUDINAL NOTCH AXIS AND RECEIVING THE LOCKING PIN WHEN THE LOCK PLATE IS BEING DISPLACED BY THE ACTUATING PIN FROM SAID RECEIVING POSITION TOWARD A LOCKING POSITION, SAID LOCK PLATE WHEN DISENGAGED FROM THE ACTUATING AND LOCKING PINS ASSUMING A POSITION IN THE PATH OF MOVEMENT OF THE LOCKING PIN WITH SAID NOTCH AXIS SUBSTANTIALLY PARALLEL TO THE MAIN FRAME, THE LOCKING NOTCH IN THE LOCKING POSITION OF THE LOCK PLATE CONFINING THE LOCKING PIN AGAINST LATERAL MOVEMENT THEREOF IN OPPOSITE DIRECTIONS.